package com.personal.website.lottery.plugin;


import org.mybatis.generator.api.CommentGenerator;
import org.mybatis.generator.api.IntrospectedTable;
import org.mybatis.generator.api.PluginAdapter;
import org.mybatis.generator.api.dom.java.Field;
import org.mybatis.generator.api.dom.java.FullyQualifiedJavaType;
import org.mybatis.generator.api.dom.java.JavaVisibility;
import org.mybatis.generator.api.dom.java.Method;
import org.mybatis.generator.api.dom.java.Parameter;
import org.mybatis.generator.api.dom.java.TopLevelClass;
import org.mybatis.generator.api.dom.xml.Attribute;
import org.mybatis.generator.api.dom.xml.TextElement;
import org.mybatis.generator.api.dom.xml.XmlElement;

import java.util.List;

public class PagePlugin2 extends PluginAdapter {
    @Override

    public boolean modelExampleClassGenerated(TopLevelClass topLevelClass, IntrospectedTable introspectedTable) {

        // addfield, getter, setter for limit clause

        addLimit(topLevelClass, introspectedTable, "limitStart");

        addLimit(topLevelClass, introspectedTable, "limitLength");

        return super.modelExampleClassGenerated(topLevelClass, introspectedTable);

    }


    @Override

    public boolean sqlMapSelectByExampleWithoutBLOBsElementGenerated(XmlElement element,

                                                                     IntrospectedTable introspectedTable) {

        // LIMIT5,10; // 检索记录行 6-15

        XmlElement limitLengthElement = new XmlElement("if");//$NON-NLS-1$

        limitLengthElement.addAttribute(new Attribute("test", "(limitStart == null or !(limitStart >= 0)) and limitLength != null and limitLength > 0"));//$NON-NLS-1$ //$NON-NLS-2$

        limitLengthElement.addElement(new TextElement("limit ${limitLength}"));

        element.addElement(limitLengthElement);

        XmlElement limitStartElement = new XmlElement("if");//$NON-NLS-1$

        limitStartElement.addAttribute(new Attribute("test", "limitStart != null and limitStart >= 0 and limitLength != null and limitLength > 0"));//$NON-NLS-1$ //$NON-NLS-2$

        limitStartElement.addElement(new TextElement("limit ${limitStart},${limitLength}"));

        element.addElement(limitStartElement);

        // LIMIT 5;//检索前 5个记录行


        return super.sqlMapUpdateByExampleWithoutBLOBsElementGenerated(element, introspectedTable);

    }


    private void addLimit(TopLevelClass topLevelClass, IntrospectedTable introspectedTable, String name) {

        CommentGenerator commentGenerator = context.getCommentGenerator();

        Field field = new Field();

        field.setVisibility(JavaVisibility.PROTECTED);

        field.setType(FullyQualifiedJavaType.getIntInstance());

        field.setName(name);

        field.setInitializationString("-1");

        commentGenerator.addFieldComment(field, introspectedTable);

        topLevelClass.addField(field);

        char c = name.charAt(0);

        String camel = Character.toUpperCase(c) + name.substring(1);

        Method method = new Method();

        method.setVisibility(JavaVisibility.PUBLIC);

        method.setName("set" + camel);

        method.addParameter(new Parameter(FullyQualifiedJavaType.getIntInstance(), name));

        method.addBodyLine("this." + name + "=" + name + ";");

        commentGenerator.addGeneralMethodComment(method, introspectedTable);

        topLevelClass.addMethod(method);

        method = new Method();

        method.setVisibility(JavaVisibility.PUBLIC);

        method.setReturnType(FullyQualifiedJavaType.getIntInstance());

        method.setName("get" + camel);

        method.addBodyLine("return " + name + ";");

        commentGenerator.addGeneralMethodComment(method, introspectedTable);

        topLevelClass.addMethod(method);

    }


    /**
     * This com.personal.website.lottery.plugin is always valid -no properties are required
     */

    public boolean validate(List<String> warnings) {

        return true;

    }
}
